diff --git a/setup.py b/setup.py
index 939e473..33a5346 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 README = (HERE / 'README.md').read_text()
 
 requirements = [
-        "pymilvus==2.0.0rc3.dev16",
+        "pymilvus==2.0.0rc4",
         "pandas==1.1.5; python_version<'3.7'",
         "pandas==1.2.4; python_version>'3.6'",
     ]